The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2011
Filed:
Feb. 23, 2006
Tomoya Sugita, Osaka, JP;
Kenichi Kasazumi, Osaka, JP;
Tetsuro Mizushima, Osaka, JP;
Kazuhisa Yamamoto, Osaka, JP;
Shinichi Kadowaki, Hyogo, JP;
Teruyuki Takizawa, Osaka, JP;
Tomoya Sugita, Osaka, JP;
Kenichi Kasazumi, Osaka, JP;
Tetsuro Mizushima, Osaka, JP;
Kazuhisa Yamamoto, Osaka, JP;
Shinichi Kadowaki, Hyogo, JP;
Teruyuki Takizawa, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A disc cartridge accommodating a photon mode optical information recording medium is provided with a disc case having an opening section, and a shutter movably disposed between a closing position to close the opening section and an opening position to open the opening section. The disc case includes a light path bending portion for bending a clearance between the shutter at the closing position and the disc case at least at two points. Stray light propagating in the clearance between the disc case and the shutter is bent at least at two points.